TECHNOLOGY
How Secure Is Julian Assange's "Thermonuclear" Insurance File?
Could Wikileaks's most damaging files be hacked too early?
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By Dan Nosowitz
December 7, 2010
Once your leader has been compared to a Bond villain, you might as well go all the way, right? A few months back, Wikileaks released a giant file that's been referred to as the "thermonuclear" option, should the organization's existence be threatened: A huge compendium of some of the most damaging secrets Wikileaks has collected, protected with an intense brand of secure encryption–for use as insurance. With Assange now in police custody on sex crimes charges, the "poison pill" is on everyone's mind.
The pill in question is a 1.4GB file, circulated by BitTorrent. It's been downloaded tens of thousands of times, no mean feat for what, at the moment, is a giant file with absolutely no use whatsoever. It's waiting on the hard drives of curious Torrenters, Wikileaks supporters, and (you can bet) government agents worldwide, awaiting the password that'll open the file to all. Although no one is sure of its contents, the file is speculated to contain the full, un-redacted documents collected by the organization to date (including, some are guessing, new documents on Guantanamo Bay or regarding the financial crisis). It has yet to be cracked, at least not publicly, though there is a hefty amount of activity from those trying, at least a little, to break into it before Assange releases the key.
What makes this so pressing is Assange's recent arrest in London, on, to say the least, somewhat controversial sex crimes charges in Sweden. There's been speculation that this could be the lead-up to more severe prosecutioncertain American politicians have called for prosecuting Assange for "treason," apparently not realizing or caring that Assange is an Australian nationaland could in turn lead to his releasing of the password for these documents.
The file is titled "insurance.aes256," implying that it's protected with an AES 256-bit key, one of the strongest in the world. The thing is, there's no actual way to figure out the type of encryption used. Though there's no particular reason for Assange to lie about the security he used, it's something to keep in mind. Let's assume for the moment that it is indeed an AES-256 encryption, which begs the question: What is AES?
Advanced Encryption Standard
Advanced Encryption Standard, or AES, is a cipher standard which came into wide use in 2001. AES is a block cipher rather than a stream cipher, meaning "blocks" of data are converted into encrypted gibberish, 128 bits at a time. It's perhaps the most-used block cipher in the world, used by, for example, the Wi-Fi protection known as WPA2. But it came to prominence in 2001 as a result of winning a contest held by the National Institute of Standards and Technology to find a new standard encryption. That led to its adoption by the NSA. That's right, Assange's "poison pill" is secured by the U.S. government's own standard.
Though AES is an open and public cipher, it's the first to be approved by the NSA for "Top Secret" information, the term used for the most dangerous classified information. It is, in short, a tremendously badass form of protection.
An AES encryption doesn't work like, say, a login. The keys are just strings of binary (in the case of AES-256, 256 binary symbols) rather than words or characters, and entering the wrong key won't simply disallow access–it'll produce elaborately encoded gibberish.
https://www.popsci.com/technology/article/2010-12/how-secure-julian-assanges-thermonuclear-insurance-file/